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InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... , an interrupt is generated every 70908 tstates, but note that these ... -
ZX Evolution -- contended memory and raster emulationFresh bleeding update for [url=http://www.nedopc.com/zxevo/zxevo_eng.php]ZX Evolution[/url] [url=https://code.google.com/p/pentevo/source/list]Baseco…
... /312/69888 and 228/311/70908), yet the CPU frequency is ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... , an interrupt is generated every 70908 tstates, but note that these ... -
How can I see how long it took for IM2 to runHow can i see how many cycles it took for my interrupt routine to run, is there some way with Spectaculator debugger etc to see how long it has taken…
69888 for 48K machines, 70908 for the 128K machines. -
Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
Did you alter line 60 to set the Cycles variable to 70908? It defaults to 69888. -
Emulating the SamRAM on the ZX Spectrum SEGerton Lunter gave me permission to reuse the code, but so far I have not been able to get the software to work in paged RAM banks.
... cycles/frame as opposed to 70908 on a 128K Spectrum (and ... -
"Programming the Spectrum in Assembly" series in Micro MartI see that Shaun Bebbington is starting a series of articles in Micro Mart magazine on how to program in assembly for those who might know a little b…
... interrupts at 50.01Hz, giving 70908 T-states per frame - so ... -
emulatorsplease help can we see clearly which emulator emaulates which hardware is there any that has a pc function key for the mulitface nmi button and the +…
... on a +3. I got 70908 for each frame so the ... ****X) but there are definitely 70908 per frame!!! I always had ... -
Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... 128k models are slightly faster (70908 states per frame vs 69888 ... -
Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…
... a 128K machine, it's 70908 tstates and a processor frequency ... -
Distinguishing between models?I'm running the risk of being pointed to the faq here, so sorry in advance. Something I'm trying out requires that the program can distinguish betwe…
... ZX models with 128kB use 70908 T states, ZX48 models only ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
... /frame. 128K machines have 311x228= 70908 cycles/frame. They have different ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
... /frame. 128K machines have 311x228= 70908 cycles/frame. They have different ...
